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3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode

Same as: TPS54331DRG4   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

US ECCN: EAR99 US/Local Export Classification Number

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
SOIC (D) | 8 2,500 | LARGE T&R
Custom reel may be available
-40 to 150
Package | Pins SOIC (D) | 8
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 150
View TI packaging information

Features for the TPS54331

  • 3.5 to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET Supports up to 3-A Continuous Output Current
  • High Efficiency at Light Loads With a Pulse Skipping Eco-mode™
  • Fixed 570 kHz Switching Frequency
  • Typical 1-µA Shutdown Quiescent Current
  • Adjustable Slow-Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8 PowerPAD™ Package
  • Create a Custom Design with WEBENCH Tools

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Description for the TPS54331

The TPS54331 device is a 28-V, 3-A non-synchronous buck converter that integrates a lowRDS(on) high-side MOSFET. To increase efficiency at light loads, a pulseskipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply-currentallows the device to be used in battery-powered applications. Current mode control with internalslope compensation simplifies the external compensation calculations and reduces component countwhile allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis ofthe input undervoltage lockout. An overvoltage transient protection circuit limits voltageovershoots during startup and transient conditions. A cycle-by-cycle current-limit scheme,frequency foldback and thermal shutdown protect the device and the load in the event of an overloadcondition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD packagethat have been internally optimized to improve thermal performance.


Qty Price (USD)
1-99 1.205
100-249 0.995
250-999 0.715
1,000+ 0.538

Additional package qty | carrier options

Package qty | Carrier 75 | TUBE
Inventory Out of stock
Qty | Price (USD) 1ku | 0.646 1-99 1.447 100-249 1.195 250-999 0.859 1,000+ 0.646